August 22, 2013, 7:00AM

At the heart of the meeting will be a discussion about contaminated disposal facilities, a controversial clean-up option that would try to wall off contaminated sediments in the river instead of spending more money to dredge the sediments and haul them to landfills. Full story »

April 08, 2013, 2:06PM

The $1.5 million in " preliminary design" work agreed to on the Willamette River's east side is a baby step. But it marks progress for the Portland Harbor Superfund cleanup project, which little action in 13 years. Full story »

January 28, 2013, 2:07PM

The local nonprofit Groundwork Portland gets $50,000 to expand the Portland Harbor Community Coalition, which wants to provide information about the Superfund cleanup to a wider range of affected communities. Full story »

January 09, 2013, 2:10PM

The 13-person advisory board includes residents of St. Johns, Linnton and Sauvie Island. But the group says it will need more resident feedback as the EPA decides this year how to clean up the Willamette River. Full story »

October 30, 2012, 5:27PM

Thousands eat highly contaminated resident fish from the harbor, the study estimates, though health risks are still hotly debated. Cleanup to reduce risks could cost more than $1.7 billion. Full story »

October 23, 2012, 12:07PM

The headliner: a 1,650-foot-long groundwater containment wall buried to bedrock up to 85 feet down. Wells behind the wall will capture contaminated groundwater and send it to a new treatment plant. A containment pond will trap and clean toxic stormwater. Full story »

August 03, 2012, 9:16AM

The Willamette River beach, part of the Portland Harbor Superfund site and owned by the Metro regional government, is fenced off. But it's still a popular spot, the health authority says, and should be a priority for cleanup. Full story »

July 09, 2012, 7:00AM

The draft plan, prepared by the Portland Harbor Natural Resource Trustee Council, says much of the damage done by harbor pollution can be repaired within the heavily industrialized harbor itself. Full story »

June 21, 2012, 12:43PM

The university's plan would allow it to develop 35 acres it purchased in 2008 on a Superfund site -- and eventually buy 45 more. The new master plan would allow the 111-year-old university to significantly increase its student body, double its on-campus housing and build new athletic facilities, including a baseball stadium. Full story »

May 01, 2012, 11:15AM

The work -- including a $9.8 million, 1,800-foot-long wall designed to contain contaminants from the Arkema site -- is crucial to federal Superfund cleanup of the harbor, first listed as a Superfund site in 2000. Full story »

March 30, 2012, 6:00AM

The Lower Willamette Group's three favored options range from $169 million to $398 million for river cleanup, well below previous estimates that reached as high as $2.2 billion. But those options rely on leaving more contamination in the Willamette River, a red flag for river watchdogs. Full story »

July 18, 2011, 8:00PM

Dumps in a slip in the Port of Portland's Terminal 4 and in the Swan Island Lagoon could capture nearly all the sludge dredged up during harbor cleanup and would likely cost less than hauling it to landfills, EPA says. Full story »